Fibreglass joints are usually used in plasterboard to seal the interior of a building, but they can be an excellent choice for filling gaps and cracks on the exterior. Knauf Fibreglass Joint Tape is a self-adhesive fibreglass mesh jointing tape that is also ideal for surface repair of plasterboard. Tape applies without compound. Fast and easy to apply and doesn't stretch or shrink. Grips joint compound efficiently and is suitable for drywall joints and crack repair. When you need strong, flexible and easy-to-use tape for surface repairs to plasterboard, choose Knauf Fibreglass Joint Tape.